I took the safe route and since the shipping cost was the same ordered two springs. Figured it's better to just do both and not worry about the other breaking soon after. The video made it very easy to see I could do this myself, I am a very handy person and would give this job 1 hammer on a 5 scale. Two screws, slide it out, and install spring.
Washer door is all set and I took the old good spring from the right and put it in my parts bin just in case one breaks prematurely. Never bad to have a spare. Now onto the garage door opener and replacing the gears inside. No need to spend $200 on a new one when $25 in gears does the trick.